According to Newton's third law, which describes what happens when a 4.5 kg pumpkin is launched from a catapult with a force of
1 answer:
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(a) 46.6 cm
To calculate the total displacement, we need to resolve each vector along the x- and y- direction.
In the following, we take:
- East as positive x-direction, West as negative x-direction
- North as positive y-direction, South as negative y-direction
Vector A:
Vector B:
Vector C:
Vector D:
So the components of the total displacement are:
So the magnitude of the total displacement is:
(b) 19.8 degrees south of west
First of all, let's notice that:
- both components x and y of the total displacement are negative --> this means that the direction of the displacement is south of west
This means that the angle will be given by
where we have
Substituting, we find
and this angle is south of west.
Answer
From A to B
Explanation
from the spectrum of visible light ,the production red light has the lowest energy difference as the wavelength is shorter and frequency lower
on the other hand, blue light is produced when the energy difference is higher.
Answer:
4.8 m
Explanation:
A transverse wave is a wave in which the oscillation of the particles occur in a direction perpendicular to the direction of motion of the wave.
The amplitude of a transverse wave is the maximum displacement of the wave with respect to the equilibrium position.
The crest of a wave is the position of maximum displacement on the positive side, while the trough of a wave is the position of maximum displacement on the negative side.
This means that the amplitude of a wave is equal to the distance between a crest (or a trough) and the equilibrium position.
Therefore, we have:
where:
d is the distance between the top of a crest and the bottom of a trough
A is the amplitude of the wave
Here we have:
A = 2.4 m
So, we find